package review;

public class SonTest {
	// 属性不能重写，子类中同名的会“遮住”父类的（遮罩)
	public static void main(String[] args) {
		Son s = new Son();
		s.print();
		s.m4();
		System.out.println("?????????????????????");
		System.out.println(s.pi);
		Father f = new Father();
		System.out.println(f.pi);
		f.print();
		System.out.println(">>>>>>>>>>>>>>>>..");

		Father f2 = new Son();
		System.out.println(">>>>>");
		System.out.println(f2.pi);
		f2.print();

		USB.showV();
	}

}
